Hey buddy, how's it going?
I hope so 👍
I think you can put the LED closer to the plant; it prevents it from stretching too much and having other types of problems :) I recommend starting the grow at about 40cm, then you can raise it to 50cm if the LED is adjustable, even better, it's easier.
I hope I helped you out.
Congrats on the grow and good luck. Cheers!